Exercise algebra.manipulation.rational.simplify

Description
simplify a rational expression (with a variable in a divisor)

Derivation

(a^2+a-2)/(a^2+3*a+2)

⇒ algebra.equations.quadratic.nice-factors

(a^2+a-2)/((a+1)*(a+2))

⇒ algebra.equations.quadratic.nice-factors

(a-1)*(a+2)/((a+1)*(a+2))

⇒ algebra.equations.rational.cancel-div, clipboard=[condition == (a /= -2)]

(a-1)/(a+1)